My 1Up stays on all the time and covers up my license plate perfectly.

I have a SARIS 4 bike, 4up hitch mount.  I drive an old BMW X5, and I have become quite good at quickly pulling the rack off and putting it on.   It weighs about 70 pounds and i don't prefer driving around with it on more than required.  If I plan to ride every other day for a few weeks, etc, I will leave it on, but if we have a big rain,etc, especially in the winter, then i pull it off.   My SARIS rack retails for about $700. I paid $500.  That said, with dual exhaust, each end of the rack is already slightly dis-colored due to exhaust blow out.  That is also where the internal locking mechanism pull out and retract from.  I want to keep the rack looking and working good.  Finally, the WWC is dust central.  With big bike racks, Auto Bell doesn't like the style of rack and I don't go there with it on.  I am looking at a one up for various reasons listed by others in other posts. Would be easier and lighter to deal with.     I saw the new 4 up bike hitch wide spaced KUAT last week.  that thing sticks out 4.5 feet and then when folded up almost covers the tailgate window....that would be off my car when not in use.